Table of Contents 

Introduction 5

1. Overview 5

1.1. The development history and trend of XR 6

1.2. Observation of XR Industry 7

2. The Challenges brought by XR to 5G Networks 8

2.1. XR service requirements 8

2.2. Key Network Metrics for XR services 9

2.3. The Main Problems and Challenges 10

3. The XR technology of network, service, device co-operation 12

3.1. Service Awareness 12

3.2. Network Adaptation 14

3.3. Connection Enhancement 15

3.4. End-Cloud Collaboration 20

3.5. User Experience Evaluation 22

4. The Value of XR 23

4.1. Application Scenarios 23

4.2. Discussion of XR bussiness model 25

5. Summary 26

References 27

Abbreviations 27